should/shouldn't建议句型 — 英语词汇题

根据中文提示，用 should 或 shouldn't 补全句子。 1. You ______ (应该) brush your teeth twice a day. 2. You ______ (不应该) eat too much sweet food. 3. You ______ (应该) go to bed early when you have a headache. 4. You ______ (不应该) play computer games for too long.